Head here for an evening resplendent with cocktails, live jazz, and small plates ideal for enjoying before or after you see a show nearby on Broadway. Do know that the spiced potato chips with caviar chive dip — and a flight of martinis — are required ordering. P.S. On Thursdays to Saturdays starting at 8 p.m. they open up “The Blue Vault,” a private tasting room with a collection of rare whiskies and famous theater memorabilia.